First Periodical Exam in Chemistry

Which element is the cornerstone of organic chemistry due to its unique bonding properties?

• Hydrogen (H)

• Oxygen (O)

• Carbon (C)

• Nitrogen (N)

Which of the following example is NOT an Organic Compound?

• Detergent

• Medicine

• Metals

• Plastics

What is the definition of organic chemistry by Jon Jacob Berzellius in early 1800?

• A branch of modern chemistry

• A branch of modern technology

• A branch of modern science

• A branch of modern research

How many known compounds are considered organic today?

• 90 %

• 92%

• 95%

• 98%

The hybridization of carbon molecules in alkanes is __________________.

• sp

• sp2

• sp3

• sp3d

What is the name of a particle with the equation C3H8?

• butane

• decane

• hexane

• propane

What is the general formula for saturated hydrocarbons?

• CnH2n+2

• CnH2n+1

• CnH2n

• CnHn+1

What is the other term used for Saturated hydrocarbon?

• Alkanes

• Alkenes

• Alkynes

• Alkaloids

What is an elimination reaction?

• A reaction that removes an atom(s) from a molecule.

• A reaction that removes all charges from a molecule.

• A reaction that removes a double bond from a molecule.

• A reaction that completely removes a molecule (breaks it down into individual atoms).

What is the general equation for an addition reaction?

• AB + CD → AD + BC

• A + B = C

• A → B + C

• AB = C